Chain grate



S. S. SLAUGHAN.

' CHAIN GRATE.

APPLICATION FILED 111111.20. 1920.

[SOLOMON s. SLAUGHAN, or 'HOMESTEAD PARK', PENNsYnvANIm j v CHAINGRATF."

To :all whom t coftoem:

Be it known that I, SOLOMON S. SLUGHAN,

" a citizenof the'United States, residing at HOMESTEAD PARK, in thecounty o'f Allegheny and State of Pennsylvania, have invented certainnew and usefullmprovementsin ChainV Grates, of which the follow'- ing isa specification.

This invention relates to grates of the endless chain type, and theobject thereof is to provide a grate of the class stated, .1n a manneras hereinafter set forth, comprising a plurality of links havingintertitting connecting elements, thereby providing for the completeassembly of the grate without the incorporation of any materials exceptthose embodied in the link structures rthemselves. v

Further objects of the invention are to provide a device of thecharacter described which is simple in its construction and arrangement,strong, durable and eiiicient in its use, and comparatively inexpensiveto manufacture.

To the accomplishment of these and such other objects as may hereinafterappear, the invention consists of the novel construction, combinationand arrangement of parts herein specifically described and illustratedin the accompanying drawing wherein is shown an embodiment of theinvention, but it is to be understood that changes, variations andmodification may be restored to which come within the scope of theclaims Vhereunto appended. Y

In the drawing forming a portion of this specification and wherein likenumerals of reference designate corresponding parts throughout theseveral views:

Figure 1 is a top plan view of the chain grate in accordance with thisinvention.

Fig. 2 is a sectional view on line IL-II, Fig. 1. 1

Fig. 3 is a perspective view of a link.

VFig. 4 is a longitudinal sectional view of associated links and theirassociated interfitting connecting elements.

Referring in detail tothe drawing there is shown in Fig. 1.a pair ofhorizontally ex' tending supporting bars 1 and 2, respectively, havingmy improved endless chain grate mounted therebetween.

The chain grate comprises a series of rows of links, each row consistingof a plurality Specicaton of Letters Pate rit Patented J une 28,1921.

Application med April 2o, i920. serial No.' 575,256."

of links 3, 'and thelinks'of' one row bein in staggered relation with`respect to, the links yof adjacent rows andhaving interfitting vconnection therewith. y Y l The chain grate is mounted, in the fire box4, on the supporting rollers 5, which latter are suitably journaled in.the supporting bars 1 and 2. The grate may be operated by any suitabledrive mechanism and pass around suitable end rollers 6 journaled in thesupporting bars 1 and 2 adjacent to the front and rear ends of thelatter.

Each of the links 3, comprising the chain grate, is preferablyvrectangular in contour and provided with rounded ofi' lower corners 7to facilitate its travel over the rolls 5 during its operation. Thelinks 3 are formed with ribbed side faces 8 to provide for air passageswhen the chain grate is assemble Each link 3, adjacent one end thereof,is formed with a duplex bearing aperture 9 gradually diminishing indiameter from the center 10 thereof toward its openings on respectivesides of the link 3. Adjacent the other end of the link 3 are a pair ofopposed trunnions 11 and 12, positioned on respectivev sides of thelink, as clearly shown in Fig. lof the drawing. Each of the trunnionsl11 and 12 is tapered to provide an enlarged outer end 13. v

Each of the trunnions 11 and 12 is of such length as to extend nearlyone-half way through the bearing aperture 9 of adjacent links in whichit is pivotally seated.

While the enlarged end 13 of the trunnions l1 and 12 is necessarilyofless diameter than the openings, at the sidesof the links, ofthebea-ring apertures 9 to permit.

the supporting bars 1` and 2 to adjacent rows' of links also serves tolock the grate 'in the assembled position. In the said adjacent rows 0flinks the trunnions on the sides zof the links facing the bars are cutaway to permit the said bars to be mounted closely to the links adjacentthereto.

It will be noted that in the assemblyof the chain grate of my improvedconstruction, no materials are required that are not v embodied in thelink itself, thereby providing a nsimple, durable and inexpensive chain'grate.A Y

What I claim is l. An endless Vjfchain grate comprisin rowsof links,each link of a row provided `near one end With laterally projecting4tapered trunnions larger in diameter at their outer'sthanat.theirginner ends and near its other end with aV transverse perforationVY gradually decreasing in diameter from its center ,toward ,each lendthereof, thetrun- Yprovided with a pair vof laterally disposed 'ftapered trunnions 4and a'fperforation Y gradurows of links, ythe linksof one roW vbeingY staggered with respect to: the .links of an adjacentrow, each of thev linksfof a row ally decreasing in diameter from itscenter link having interfitting connection in the perforations' of apair of adjacent links whereby .the Vrows `of, links arejconnectedtogether. and pivots are fprovide'd'l for Vthe links during the ,travelthereof.,

-In testimony Whereofl affix my signature.

SOLOMON 1S.SLAUGHAN Y e

